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Welding for CMC

Discussion in '2nd Gen. Tacomas (2005-2015)' started by JsDCTRD, Feb 28, 2019.

  1. Feb 28, 2019 at 6:49 PM
    #1
    JsDCTRD

    JsDCTRD [OP] Well-Known Member

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    I don’t weld, but work for a construction company and have plenty of guys that can weld for me.

    Question is would stick welding be too hot/too much penetration on the cmc?

    I know most people have it done MIG or TIG but I only really have access to rig trucks, and my guys don’t typically carry Argon...we just don’t use it much.
     
  2. Feb 28, 2019 at 6:53 PM
    #2
    shaeff

    shaeff Well-Known Member

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    Just turning down the amperage and using the correct rod for the job will get you all set just fine. Your welder buddies will know, I wouldn’t worry too much.
     
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  3. Feb 28, 2019 at 6:56 PM
    #3
    JsDCTRD

    JsDCTRD [OP] Well-Known Member

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    @shaeff

    It’s amazing what some good breakfast tacos will get you :D

    But thank you, sir.

    I did iron when I was in the field so I never learned all the fancy fun stuff.
     
  4. Feb 28, 2019 at 7:04 PM
    #4
    shaeff

    shaeff Well-Known Member

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    Right on! My guess is that they’d use a 6010/6011 rod (depending on their machines). The weld puddle sets up quickly as you move and they penetrate well. Also burn through rust and junk easily.
     
  5. Feb 28, 2019 at 7:25 PM
    #5
    maxtherat

    maxtherat Well-Known Member

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    That would be my guess too 6010. Good all purpose rod for multi position welding. It will not look pretty like TIG but the key is getting good penetration and even heat between the two metals. You can always hit the weld with a flap wheel to smooth the weld when done. Just make absolute sure you disconnect the battery!!!
     
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  6. Mar 1, 2019 at 7:25 AM
    #6
    DesertRatliff

    DesertRatliff Well-Known Member

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    Most pro welders have access to MIG or TIG machines, even if they just have an old wire-feeder in their garage. Since the work is pretty visible here, I'd ask around your crew and see if someone has the right tool and can make it look purdy. On a side note, a cheap wire-feeder for your garage is money well spent.
     
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  7. Mar 1, 2019 at 7:28 AM
    #7
    whatstcp

    whatstcp currently drunk so don't listen to me

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    Worst case scenario if they melt your cab mount bushings then it'll just be an excuse to switch them out for energy suspension polyurethane ones
     
  8. Mar 1, 2019 at 3:29 PM
    #8
    JsDCTRD

    JsDCTRD [OP] Well-Known Member

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    @whatstcp

    Assuming you've done this mod, where I can get them? Just in case.
     
  9. Mar 1, 2019 at 3:35 PM
    #9
    whatstcp

    whatstcp currently drunk so don't listen to me

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    Literally just replaced them this week using @Pigpen tutorial

    Really easy to do, just takes time as you want to double check everything. Around 80 bucks on Amazon. This is the link for the black ones but you can get them in red as well if you want them to "pop" a little more. Prime shipping so if they melt your mounts they can be quickly replaced in a day or two. Don't really feel a difference though.

    https://www.amazon.com/Energy-Suspension-8-4109G-Performance-Polyurethane/dp/B00G1X9ZA6
     
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  10. Mar 1, 2019 at 3:39 PM
    #10
    JsDCTRD

    JsDCTRD [OP] Well-Known Member

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    Awesome, thank you sir! I'll order them this evening as a CYA:spending:
     
  11. Mar 1, 2019 at 3:41 PM
    #11
    whatstcp

    whatstcp currently drunk so don't listen to me

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  12. Mar 1, 2019 at 3:43 PM
    #12
    EatSleepTacos

    EatSleepTacos Well-Known Member

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    I was gonna say, be careful with the amount of heat they put into it so they don't cook the bushing. Small 1" welds jumping around keeps it cool, and it'll clean up nicely with a flap disc on an angle grinder when all is done.
     
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  13. Mar 1, 2019 at 3:48 PM
    #13
    JsDCTRD

    JsDCTRD [OP] Well-Known Member

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    @EatSleepTacos

    That is the plan. Small stitch welds jumping from side to side and giving proper cooling time.
     
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  14. Mar 1, 2019 at 3:50 PM
    #14
    EatSleepTacos

    EatSleepTacos Well-Known Member

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    You could stay on the same side if you wanted. Here's what I do whenever I do a CMC (I've done about 10)

    • Cut drivers side
    • weld drivers side
    • cut passenger side
    • weld passenger side
    • grind drivers side
    • grind passenger side
    • paint
    Bouncing back and forth like that between welding, grinding and painting works very well.
     
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